drop user maxzhao cascade; drop tablespace maxzhao; create tablespace maxzhao datafile'e:\oracle\data\maxzhao.dbf' size 5g autoextend on next 1g maxsize unlimited; ALTER tablespace maxzhao ADD datafile'e:\oracle\data\maxzhao2.dbf' size 5g autoextend on next 1g maxsize unlimited; ALTER tablespace maxzhao ADD datafile'e:\oracle\data\maxzhao3.dbf' size 5g autoextend on next 1g maxsize unlimited; create user maxzhao identified by maxzhao default tablespace maxzhao; grant create session to maxzhao; grant create table,create view,create trigger,create sequence,create procedure,create type to maxzhao; grant unlimited tablespace to maxzhao; grant dba to maxzhao;